javahibernate2.JavaHibernate2.java Source code

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Here is the source code for javahibernate2.JavaHibernate2.java

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/*
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package javahibernate2;

/**
 *
 * @author L3000n100
 */

import java.sql.Connection;
import java.sql.SQLException;
import java.sql.DriverManager;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.boot.registry.StandardServiceRegistry;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.jboss.logging.Logger;

public class JavaHibernate2 {
    private static final Logger LOG = Logger.getLogger(JavaHibernate2.class.getClass());
    private final String DRIVER = "org.apache.derby.jdbc.EmbeddedDriver";
    private final String JDBC_URL = "jdbc:derby:db/USERS;create=true";
    private Connection con;

    public static void main(String[] args) {
        JavaHibernate2 jh = new JavaHibernate2();
        jh.connect();

        Transaction tx = null;
        Session session = jh.initHibernate().getCurrentSession();

        try {
            tx = session.beginTransaction();
            UserClass user = new UserClass();
            user.setName("Sample2");
            user.setId(105);

            session.save(user);
            session.getTransaction().commit();
        } catch (RuntimeException e) {
            if (tx != null)
                tx.rollback();
            e.printStackTrace();
        } finally {
            if (session.isOpen() && session != null) {
                session.flush();
                session.close();
            }
        }
    }

    public SessionFactory initHibernate() {
        try {
            final Configuration config = new Configuration();
            config.configure("hibernate.cfg.xml");
            LOG.info("Connection to hibernate URL = " + config.getProperty("hibernate.connection.url"));
            StandardServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()
                    .applySettings(config.getProperties()).build();

            return config.buildSessionFactory(serviceRegistry);
        } catch (Exception e) {
            System.out.println(e.toString());
            return null;
        }
    }

    private void connect() {
        try {
            Class.forName(DRIVER);
            con = DriverManager.getConnection(JDBC_URL);
            if (con != null) {
                System.out.println("Connected to the Database");
            }
        } catch (ClassNotFoundException | SQLException e) {
            System.out.println(e.getMessage());
        }
    }
}